An electron is accelerated from rest through a potential difference V₁ and has de Broglie wavelength λ₁. When the accelerating potential is changed to V₂, the associated de Broglie wavelength increases by 50%. If V₁/V₂ = 9/α, find α.

Physics · Photoelectric effect and dual nature of matter · debroglie duel nature of light

JEE Mains 2026 6 April Evening Shift

An electron is accelerated from rest through a potential difference V₁ and has de Broglie wavelength λ₁. When the accelerating potential is changed to V₂, the associated de Broglie wavelength increases by 50%. If V₁/V₂ = 9/α, find α.